545009497 has 4 divisors (see below), whose sum is σ = 545141376. Its totient is φ = 544877620.

The previous prime is 545009489. The next prime is 545009501. The reversal of 545009497 is 794900545.

It is a happy number.

545009497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545009497 - 2³ = 545009489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545009407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59533 + ... + 68074.

It is an arithmetic number, because the mean of its divisors is an integer number (136285344).

Almost surely, 2^545009497 is an apocalyptic number.

It is an amenable number.

545009497 is a deficient number, since it is larger than the sum of its proper divisors (131879).

545009497 is a wasteful number, since it uses less digits than its factorization.

545009497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131878.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 545009497 is about 23345.4384623635. The cubic root of 545009497 is about 816.8356616164.

The spelling of 545009497 in words is "five hundred forty-five million, nine thousand, four hundred ninety-seven".